There is wide fluctuation in the prices of commodities in times of disturbances.
The sensation of sound is produced by rapid fluctuation in the pressure of the atmosphere on the tympanum of the Charac- ear.
After the Civil War there have been several important changes in the crops raised: the development of cotton manufacturing in the South and the utilization of cotton-seed oil and meal gave impetus to cotton culture; and the discovery of the adaptability of much of the cotton land to the culture of tobacco of a superior quality resulted first in the development of a vast tobacco industry and then to a fluctuation in acreage of the crops of tobacco and of cotton, according as the price of either rose or fell.